From 674fca2023219beec5ede3eaef0e0c7c9697eb7e Mon Sep 17 00:00:00 2001
From: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Date: Thu, 25 Nov 2021 09:46:45 +0100
Subject: [PATCH] sys/arduino: use static_assert() instead of BUILD_BUG_ON()

---
 sys/arduino/SPI.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/arduino/SPI.cpp b/sys/arduino/SPI.cpp
index fd67aa83cb..d4f263c060 100644
--- a/sys/arduino/SPI.cpp
+++ b/sys/arduino/SPI.cpp
@@ -66,8 +66,10 @@ SPISettings::SPISettings(uint32_t clock_hz, uint8_t bitOrder, uint8_t dataMode)
 
 SPIClass::SPIClass(spi_t spi_dev)
 {
-    /* Check if default SPI interface is valid */
-    BUILD_BUG_ON(ARDUINO_SPI_INTERFACE >= SPI_NUMOF);
+    /* Check if default SPI interface is valid. Casting to int to avoid
+     * bogus type-limits warning here. */
+    static_assert((int)ARDUINO_SPI_INTERFACE <= (int)SPI_NUMOF,
+                  "spi_dev out of bounds");
     this->spi_dev = spi_dev;
     this->settings = SPISettings();
     this->is_transaction = false;